Finding the Fourth Proportional to 4,801,902,511.60, 7,202,853,767.40 and 3,985,609,135.60
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Solution
The fourth proportional to 4,801,902,511.60, 7,202,853,767.40 and 3,985,609,135.60 is: 5,978,413,703.40
Step by Step Solution
- Step 1: Write the proportion equation
4,801,902,511.60 : 7,202,853,767.40 = 3,985,609,135.60 : x - Step 2: Convert to fraction form
4,801,902,511.60/7,202,853,767.40 = 3,985,609,135.60/x - Step 3: Cross multiply
4,801,902,511.60x = 7,202,853,767.40 × 3,985,609,135.60 - Step 4: Simplify right side
4,801,902,511.60x = 28,707,759,777,740,316,672 - Step 5: Solve for x
x = 28,707,759,777,740,316,672/4,801,902,511.60 - Step 6: Final answer
x = 5,978,413,703.40
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.